SKU: 1345564068

Long Tube Header for 1968-74 Oldsmobile Cutlass 5.7/6.6 - Ceramic Coated - 31150FLT FlowTech

Sale price$263.23 Regular price$292.48
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Long Tube Header for 1968-74 Oldsmobile Cutlass 5.7/6.6 - Ceramic Coated - 31150FLT FlowTechOverview: Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5 16" flanges with sealing rings for a leak free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces

Overview:

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.

Features:

  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Ceramic Headers
  • Rust And Corrosion Resistance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware

Application:

Year Make Model Engine Fitment Notes
1968-1969 Oldsmobile 442 6.6L V8 400 CID See Below!
1968-1974 Oldsmobile Cutlass 5.7L V8 350 CID See Below!
1968 Oldsmobile Cutlass 6.6L V8 400 CID See Below!

Fitment Notes:

  • Will not fit column mounted standard or floor mounted automatics or Cutlass Supreme models.
  • Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage.
  • The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
  • Recommended replacement gasket - Mr. Gasket part# 453
  • Must modify exhaust system to retain catalytic converters.

Specs:

Bolt Size 3/8-16 x 3/4 In.
Brand Flowtech
Collector Diameter 3.00 inch
Emission Code 4
Engine Oldsmobile V8
Header Finish Silver Ceramic
Header Style Long Tube
Primary Tube Dia. 1-3/4 inch
Product Type Headers
Tube Material Mild Steel

Emissions:

  • This part is legal for sale or use on Racing Use Only Vehicles
  • The following vehicles are considered Racing Use Only Vehicles:
    • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.
  • WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1345564068

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tiffany abboud
Carnegie, US
★★★★★ 5
Smells nice
Scent: Cookie Bundle, Size: 26 Fl Oz (Pack of 2)
Love how it makes my skin feel after use and it smells good.
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Reviewed in the United States on October 14, 2025
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Monika
Lowell, US
★★★★★ 5
Great skin care product
This has become the best part of my skin care routine. I use these at least 3 times a week and I love that tingly feeling. Plus I can see a difference in my pores and glow. Yes hunny l am in love.
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Reviewed in the United States on May 15, 2026
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FITZ-HUGH IRVING
Whiting, US
★★★★★ 5
Not your regular under eye patches
Im in love with these under eye patches. These are not your regular under eye patches. My eyes look refreshed and hydrated. I often keep them on all day and i love the tightening effect after they dry down. My under eye feels firmer and looks plumper. Sometimes i will even wear them overnight. They are very cooling. I love that they are clear so not very visible on zoom meetings. For all that it does, it is definitely worth the hype and the price.
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Reviewed in the United States on May 8, 2026
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Trina Dixon
Pawtucket, US
★★★★★ 4
Provides cooling to tired eyes
These patches feel really good under your eyes. They are cooling, reduces puffiness, reduces discoloring and bags under the eyes. The only issue I have is not staying under the eye very well. Other than that they moisturize quite well and they are effective. The scent is very subtle so not to irritate your eyes. I use this line of products so I would definitely recommend
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Reviewed in the United States on May 21, 2026
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Brooke Ballinger
Alexandria, US
★★★★★ 5
Great for crows feet
I thought this was a cream it is actually patches. They adhere well and are great while sleeping. I noticed a reduction and wrinkles around my eyes after the first night. There was a generous supply of product on the patches and are worth the money.
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Reviewed in the United States on May 30, 2026

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